Integration of Rhodamine B into Zirconium-based Metal-organic Framework for Selective Detection of Ferric Ion

被引：4

作者：

Chen Yang ^{[1
]}

Zhao Jie ^{[1
]}

Zhang Jia-Hui ^{[1
]}

Li Jing ^{[1
]}

Du Pei-Yao ^{[1
]}

Lu Xiao-Quan ^{[2
]}

机构：

[1] Tianjin Univ, Sch Sci, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China

[2] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Lanzhou 730070, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2021年 / 49卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Fluorescence sensing; Metal-organic framework; Ferric ion; Rhodamine B; Selectivity; FE3+ IONS; SENSITIVE DETECTION; FLUORESCENT-PROBES; QUANTUM DOTS; IRON; CHEMOSENSOR; IRON(III); EXCHANGE; FE(III);

D O I：

10.19756/j.issn.0253-3820.201735

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Rhodamine B ( RhB) dyes usually have no selectivity in fluorescence detection of Fe3+, which limits their application in analytical detection. In this study, a composite material (RhB@ PCN-777) with RhB encapsulated in a zirconium-based organic framework (PCN-777) channel was synthesized and applied to the specific detection of Fe3+ in water. Compared with free RhB, RhB @ PCN-777 exhibited drastically improved fluorescence stability and high selectivity for the determination of Fe3+. RhB@ PCN-777 composite featured a yellow emission at 586 nm when dispersed in aqueous solution, which could detect Fe3+ in water with high sensitivity and selectivity, with a detection limit as low as 0.16 mu mol/L. Moreover, RhB@ PCN-777 was successfully used to detect Fe3+ in real water samples with recoveries ranging from 94.2% to 103.9% , indicating that the fluorescent probe had high reliability in actual environmental aqueous samples.

引用

页码：642 / 651

页数：10

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